Apparatus and method for a foldable child containment system

ABSTRACT

An apparatus and method for a foldable child containment system can include an infant or child&#39;s playard. The playard can include a top rail support assembly and a bottom rail support assembly defining the top and bottom of a playard enclosure. A hub assembly can be coupled to the bottom rail support assembly. Corner posts can operably couple the top rail support assembly to the bottom rail support assembly. The top rail support assembly can include one or more rail locking mechanisms to lock and unlock a pair of top rail members from folding. Release mechanisms can be coupled to a rail locking mechanism and to the bottom rail support assembly. When the hub is lifted, the bottom rail support assembly rotates with respect to the corner posts and creates a tension in the release mechanisms that adjusts the rail locking mechanism from locked to unlocked configuration.

RELATED APPLICATIONS

This application claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 62/352,270 filed Jun. 20, 2016, and titled “Apparatus and Method for a Foldable Child Containment System,” the entire contents of which are hereby incorporated herein by reference for all purposes.

TECHNICAL FIELD

Embodiments disclosed herein are generally related to child containment systems, such as a playard, and more particularly to apparatuses and methods for a foldable child containment system.

BACKGROUND

Playards and other child containment systems can be configured to be folded for storage. However, conventional playards typically require multiple hands and the engagement or disengagement of multiple mechanisms in order to fully adjust the playard from a use configuration to a folded configuration. This can be difficult to do if the user is trying to fold the playard alone and/or has limited range of motion, such as for reaching into the playard to pull the middle section upward for folding. Further, this can be difficult for those who are limited to the amount of weight or force they can sustain during the folding and unfolding process.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

For a more complete understanding of the present disclosure and certain features thereof, reference is now made to the following description, in conjunction with the accompanying figures briefly described as follows:

FIG. 1 presents a side elevation view of the foldable child containment system in the use configuration, in accordance with one exemplary embodiment.

FIGS. 2A-2B are various views of the rail locking mechanism for the foldable child containment system, in accordance with one exemplary embodiment.

FIGS. 3A-3D are various views of the webbing support coupled to portions of the top and bottom rails of the foldable child containment system, in accordance with one exemplary embodiment.

FIGS. 4A-4B are various views of the rotatable bottom rail support system for the foldable child containment system, in accordance with one exemplary embodiment.

FIG. 5 is a partial perspective view of the one-hand rail release mechanism for use with the foldable child containment system, in accordance with one exemplary embodiment.

FIG. 6 is a perspective view of an end wall support system for the foldable child containment system, in accordance with one exemplary embodiment.

FIGS. 7A-7B are various views of another rail locking mechanism for the foldable child containment system, in accordance with another exemplary embodiment.

FIG. 8 is a partial perspective view of another rail release mechanism for use with the foldable child containment system, in accordance with another exemplary embodiment.

FIGS. 9A-9B are various views of a vertically telescoping vertical support system for use with the foldable child containment system, in accordance with another exemplary embodiment.

FIGS. 10A-10B are various views of another rail locking mechanism for the foldable child containment system, in accordance with another exemplary embodiment.

FIGS. 11A-11C are side elevation views showing the foldable child containment system being converted from a user configuration to a folded configuration, in accordance with one exemplary embodiment.

FIGS. 12A-D are various views of another foldable child containment system in the use configuration, in accordance with another example embodiment of the disclosure

FIGS. 13A-E are various views of the processor for adjusting the foldable child containment system of FIGS. 12A-D from a use configuration to a folded configuration.

DETAILED DESCRIPTION OF THE EXAMPLE EMBODIMENTS

Example embodiments now will be described more fully hereinafter with reference to the accompanying drawings, in which example embodiments are shown. The concepts claimed and described herein may, however, be embodied in many different forms and should not be construed as limited to the example embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Like numbers refer to like, but not necessarily the same, elements throughout.

Certain dimensions and features of the example foldable child containment systems are described herein using the term “approximately.” As used herein, the term “approximately” indicates that each of the described dimensions is not a strict boundary or parameter and does not exclude functionally similar variations therefrom. Unless context or the description indicates otherwise, the use of the term “approximately” in connection with a numerical parameter indicates that the numerical parameter includes variations that, using mathematical and industrial principles accepted in the art (e.g., rounding, measurement or other systematic errors, manufacturing tolerances, etc.), would not vary the least significant digit.

In addition, certain relationships are described herein using the term “substantially.” As used herein, the terms “substantially” and “substantially equal” indicates that the equal relationship is not a strict relationship and does not exclude functionally similar variations therefrom. Unless context or the description indicates otherwise, the use of the term “substantially” or “substantially equal” in connection with two or more described dimensions or elements indicates that the equal relationship between the dimensions or elements includes variations that, using mathematical and industrial principles accepted in the art (e.g., rounding, measurement or other systematic errors, manufacturing tolerances, etc.), would not vary the least significant digit of the dimensions or elements. As used herein, the term “substantially constant” indicates that the constant relationship is not a strict relationship and does not exclude functionally similar variations therefrom. As used herein, the term “substantially parallel” indicates that the parallel relationship is not a strict relationship and does not exclude functionally similar variations therefrom.

FIG. 1 presents a side elevation view of the foldable child containment system 100 in the use configuration, in accordance with one example embodiment of the disclosure. Referring to FIG. 1, the foldable child containment system 100, referred to hereinafter as a “playard” for example, can include a frame assembly that supports and defines a play surface 150 suspended above a floor or other ground surface. In one example, the frame assembly defines a rectangular base, a pair of opposed side walls or panels and a pair of opposed end walls or panels. The walls/panels can extend upward from play surface 150 to surround the play surface 150 and define a child containment area for an infant or toddler. The walls can be generally formed of soft goods, such as fabric material 122, 124 and see-through mesh material 126 that can be suspended from or otherwise supported by the frame assembly as shown. In one example, at least a portion of the frame assembly can be covered by fabric or another form of soft goods and can thus be largely concealed from view.

In one example, the frame assembly can include opposing top rail overhangs 102 disposed along the top portion of the corresponding end walls. The frame assembly can further include a first top rail 104A and a second top rail 106A, each rotatably coupled to and extending from opposing ends of one of the top rail overhangs 102. The other top rail overhang 102 can include corresponding first 104B and second 106B top rails rotatably coupled to the top rail overhang. Each of the first top rails 104A, 104B and second top rails 106A, 106B can have a first end that is rotatably coupled to the corresponding end of one of the top rail overhangs and an opposing end that is operably coupled to one of a pair of rail locking mechanisms 118A, 118B. In one embodiment, the rail locking mechanisms 118A, 118B are disposed substantially at the midpoint of each of the main walls.

In one example, the top rails 104A, 106A, 104B, 106B, top rail overhangs 102 and the rail locking mechanisms 118A, 118B collectively define a top end of the child containment area. In certain example embodiments, each of the top rails 104A, 106A, 104B, 106B and overhangs 102 can be constructed in whole or in part from metal or plastic rod or tubing. In certain example embodiments, each of the top rails 104A, 106A, 104B, and 106B and top rail overhangs 102 can have a circular or substantially circular cross-sectional shape. In one example, the circular or substantially circular cross-sectional shape can increase the ease of slidably inserting and passing the top rails 104A, 106A, 104B, and 106B through one or more channels along the top end of the fabric or other soft goods material 122.

The playard 100 can also include a pair of vertical support systems 116. Each vertical support system 116 can be operatively coupled along a top end to one or more top hinges 128 and along an opposing bottom end to a horizontal leg support 108. In one example, each vertical support system 116 can be vertically extending and located adjacent one of the corresponding end walls of the playard 100. The vertical support system can be configured to provide vertical support for the top rails 104A, 106A, 104B, and 106B with respect to the bottom rail support system 120.

Each horizontal leg support 108 can include a horizontally or substantially horizontally extending support member 108 that can be coupled to a bottom end of the vertical support system 116. In one example embodiment, one of the horizontal leg supports 108 can include a first leg 110 disposed at and extending vertically downward from one end of the support 108 and a second leg 110 disposed at and extending vertically downward from an opposing second end of the support 108. Each of the legs 110 can be configured to rest along the ground or other surface. In one example embodiment, the other of the horizontal leg supports 108 can include a first wheel support 112 and wheel 114 disposed at and extending vertically downward from one end of the support 108 and a second wheel support 112 and wheel 114 disposed at and extending vertically downward from an opposing second end of the support 108. Each of the wheels 114 can be configured to roll along the ground or other surface.

Each horizontal leg support 108 can also include one or more bottom rail support hinges 424 and 426 and one or more fold support hinges 130. Each bottom rail support hinge can be coupled to the horizontal leg support 108 and/or the vertical support system 116 and rotatably coupled to at least a portion of the bottom rail support system 120. The one or more fold support hinges 130 can be coupled to the horizontal leg support and rotatably coupled to a fold support member 416 (see FIG. 4A). In one example embodiment, at least a portion of the bottom rail support system 120 includes a plurality of metal or plastic supporting rods or tubing that are configured to support the play surface 150 when the playard 100 is in the use configuration.

FIGS. 2A-2B are various view of a rail locking mechanism 118A, 118B that can be used for locking and unlocking the top rails 104A, 104B and 106A, 106B of the playard 100 according to one example embodiment of the disclosure. Now referring to FIGS. 1-2B, the rail locking mechanism 118A, 118B, can include two opposing ends that define passageways, one for receiving an end portion of the top rail 104A (or 106A on the opposing set of top rails) and another end for receiving an end portion of the top rail 104B (or 106B on the opposing set of top rails). The top rail 104A (and similarly 106A) can include a first rivet 208 and a second rivet 220. The top rail 104B (and similarly 106B) can include a first rivet 210 and a second rivet 222. Each of the rivets 208, 210 can extend through the body of the respective top rail 104A (or 106A), 104B (or 106B), the slide plate 202, and the top cover plate or saddle 230 in a direction orthogonal or substantially orthogonal to the longitudinal axis of the respective top rail. In addition, each of the rivets 220, 222 can extend through the body of the respective top rail 104A (or 106A), 104B (or 106B), and the slide plate 202.

Each of the ends of the top rails 104A, 104B (and corresponding 106A and 106B) can include a slotted opening 250 disposed through a portion of the end of the respective top rail and extending along the longitudinal axis of the respective top rail. The rail locking mechanism 118A can also include a slide plate 202 that can be at least partially disposed within the respective slotted openings of each of the top rails 104A, 104B (and corresponding 106A and 106B for mechanism 118B). The slide plate 202 can include a first enclosed slot 204 for receiving the first rivet 208 of the top rail 104A and a second enclosed slot 206 for receiving the first rivet 210 of the top rail 104B. Each of the first enclosed slot 204 and second enclosed slot 206 can extend generally in the longitudinal direction of the top rails 104A, 104B when the playard 100 is in the use configuration. Each of the first enclosed slot 204 and the second enclosed slot 206 are configured to maintain each of the top rail 104A and top rail 104B in slidable connection with the rail locking mechanism 118A.

The rail locking mechanism 118A, 118B can also include a first locking slot 212 and a second locking slot 216. The first locking slot 212 can be configured to receive the second rivet 220 of the top rail 104A. The first locking slot 212 can include an exit aperture disposed along a portion of the bottom end of the first locking slot 212 for allowing the second rivet 220 to exit the first locking slot 212 when the playard 100 is being adjusted from the use configuration to the folded configuration, as shown in FIGS. 11A-11C, or to allow the second rivet 220 to re-enter the first locking slot 212 when the playard is being adjusted from the folded configuration to the use configuration. The first locking slot 212 can also include an angled entry surface 214 that the second rivet 220 can ride along to direct the second rivet 220 back into the first locking slot 212. The rail locking mechanism 118B and top rails 106A, 106B are configured in substantially the same manner.

The second locking slot 216 can be configured to receive the second rivet 222 of the top rail 104B. The second locking slot 216 can include an exit aperture disposed along a portion of the bottom end of the second locking slot 216 for allowing the second rivet 222 to exit the second locking slot 216 when the playard 100 is being adjusted from the use configuration to the folded configuration, as shown in FIGS. 11A-11C, or to allow the second rivet 222 to re-enter the second locking slot 216 when the playard 100 is being adjusted from the folded configuration to the use configuration. The second locking slot 216 can also include an angled entry surface 218 that the second rivet 222 can ride along to direct the second rivet 222 back into the second locking slot 216. The rail locking mechanism 118B and top rails 106A, 106B are configured in substantially the same manner.

The rail locking mechanism 118A, 118B can also include a cable attachment aperture 224 for attaching a cable (not shown) thereto. The cable can extend through an internal passageway of the top rail 104A and another cable or the same cable can also extend through the internal passageway of the top rail 106A from the corresponding cable attachments 224 of the rail locking mechanisms 118A, 118B to a rail release mechanism, described hereinafter. The rail release mechanism can cause tension in the cable (or each of the cables) that pulls the corresponding rail locking mechanisms 118A, 118B in the direction “A” from a locked position to an unlocked position. In the unlocked position, the second rivets 220, 222 can pass through the corresponding exit apertures for each of the respective first locking slot 212 and second locking slot 216. Once the second rivets 220, 222 pass through the corresponding exit apertures, each corresponding top rail 104A, 104B can rotate from a generally horizontal position to a vertical or substantially vertical position as the playard 100 is adjusted into the folded configuration, as shown in FIG. 11C. The rail locking mechanism 118B and top rails 106A, 106B are configured and move in substantially the same manner.

Each rail locking mechanism 118A, 118B can also include a spring biasing mechanism (not shown) coupled to the slide plate 202. The spring biasing mechanism can bias the slide plate 202 into the locked position. The rail locking mechanism 118A, 118B can also include a top cover plate or saddle 230 that is disposed over at least a portion of the top surface of the corresponding rail locking mechanism 118A, 118B. The saddle 230 can be configured to limit access to the portion of the mechanism 118A, 118B where the ends of the top rails 104A, 104B or 106A, 106B come close to one-another in the use configuration and create a potential pinch point. Similarly, each rail locking mechanism 118A, 118B can also include a pair of side plates 232, each disposed on opposing lateral sides of the top rails 104A, 104B or 106A, 106B. In one example embodiment, the side plates 232 can be movably coupled to the top rail 104A via the first rivet 208 and to the top rail 104B via the first rivet 210. The rail locking mechanism 118B and top rails 106A, 106B are configured in substantially the same manner.

FIGS. 3A-3D are various views of a webbing support 302 coupled to portions of the top and bottom rails of the playard 100 according to one example embodiment of the disclosure. Now referring to FIGS. 1 and 3A-3D, the webbing support 302 links or attaches the top rail overhang 102 to the bottom rail support system 120. In certain example embodiments, two webbing supports 302A, 302B (FIG. 3D) can be used, each linking the top rail overhang 102 to the bottom rail support system 120. The webbing support 302 can be elastic or inelastic. In one example embodiment, the webbing supports 302A, 302B can be constructed of seat belt webbing. Each webbing support 302A, 302B can have a first end coupled to the top rail overhang 102 with a coupling device 304 (304A and 304B in FIG. 3C) and a distal second end coupled to the bottom rail support system 120 with a coupling device 306. In one example, the coupling device is a rivet or screw that is driven through the webbing and a plastic or metal attachment device that is attached to the corresponding tubing of the top rail overhang 102 or the bottom rail support system 120; however, other forms of coupling devices, such as a loop formed in the webbing, buttons, snaps, ties, latching devices and the like can be substituted therein.

Each webbing support 302A, 302B can have it first end coupled to the top rail overhang 102 behind or outside of the top end hinges 128 and the corresponding distal second ends coupled to a portion of the bottom rail support system 120 that is rotatably coupled to one or more of the bottom end hinges 424, 426 (FIG. 4). In certain example embodiments, each webbing support 302A, 302B can be totally or partially enclosed in fabric or other soft goods material 308. In use, when the rail locking mechanism is adjusted from the locked position to the unlocked position, and the top rails 104A, 104B, 106A, 106B rotate downward from the horizontal position to the vertical or substantially vertical position, each webbing support 302A, 302B will pull up on the bottom rail support system 120. This causes the entire floor of the playard 100 to fold upwards giving us the accordion shape.

FIGS. 4A-4B are various views of the rotatably bottom rail support system 120 for the playard 100 according to one example embodiment of the disclosure. The bottom rail support system 120 will be described with reference to the framing and coupling/rotational devices extending from one end of the playard 100 to the center of the bottom rails support system 120. However, as shown in FIG. 4A, it is understood that a mirror image of the framing and coupling/rotational devices exists for the other half of the bottom rail support system 120 and operates in the same or substantially the same manner.

The bottom rail support system 120 can include a main bottom rail 402 having a first end 404 and a second end 406. The main bottom rail 402 can include a portion between the first end 404 and second end 406 that extends substantially parallel with the longitudinal axis of the leg support 108. This portion can be rotatably coupled to the horizontal leg support 108 by way of one or more hinges, such as bottom rail support hinges 424, 426. The bottom rail support hinges 424, 426 are configured to rotate the main bottom rail 402 from a substantially horizontal position when the playard 100 is in a use configuration to a vertical or substantially vertical orientation when the playard 100 is in the folded configuration, as shown in FIG. 11C. The first end 404 of the main bottom rail 402 can be rotatably coupled to a center support rail 412 by way of a hinge 408. The second end 406 of the main bottom rail 402 can be rotatably coupled to the center support rail 412 by way of a hinge 410. In one example embodiment, the center support rail 412 can have a longitudinal axis that extends in a direction parallel or substantially parallel to the longitudinal axis of the leg support 108.

The bottom rail support system 120 can also include a fold support member 416 having a first end 418 and a distal second end 420. In one example embodiment, the fold support member 416 can have a longitudinal axis that extends in a direction orthogonal or substantially orthogonal to the longitudinal axis of the center support rail 412. The first end 418 of the fold support member 416 can be rotatably coupled to the leg support 108 via a hinge 130. The second end 420 of the fold support member 416 can be rotatably coupled to the center support rail 412 via a hinge 422. The fold support member 416 can be configured to rotate, by way of the hinges 130, 422, from a substantially horizontal position when the playard 100 is in a use configuration to a vertical or substantially vertical orientation when the playard 100 is in the folded configuration, as shown in FIG. 11C.

In certain example embodiments, the bottom rail support system 120 can also include a second bottom rail 430 having a first end coupled to the mail bottom rail 402 generally near the first end 404 and a second end coupled to the main bottom rail 402 generally near the second end 406. In one example, the second bottom rail 430 can be configured to provide additional support for the bottom rail support system 120 and for the play surface 150 of the playard 100 disposed thereabove. While the example bottom rail support system describes only a single second bottom rail 430, in other example embodiments more than one second bottom rail may be used. Further, while the rails of the bottom rail support system 120 in FIGS. 4A and 4B have certain shapes, these are for example only as different shapes or rails may also be used. In addition, while some rails of the bottom rail support system 120 may be described as a single unitary piece, this is also for example purposes only, as each may be made from one or multiple pieces of solid core and/or hollow tubing material. The inclusion of multiple hinge points between the center support rail 412 and the leg support 108 aid in the folding process. Further, the shape of the rails of the bottom rail support system 120 and the location of the hinges 130, 424, 426 keeps the end panels/walls vertical when adjusting the playard 100 from the use configuration to the folded configuration, as shown in FIGS. 11A-11C, thereby allowing for a true one-hand foldable playard 100.

FIG. 5 is a partial perspective view of a one-hand rail release mechanism 502 than can be used with the foldable playard 100 according to one example embodiment of the disclosure. Now referring to FIGS. 1, 2A-2B, and 5, the one-hand rail release mechanism 502 can include a grip surface. The one-hand rail release mechanism can be coupled to the top rail overhang 102 along one end of the playard 100. The mechanism 502 can also include a slide lock 504 disposed along the top end of the grip surface. The slide lock 504 can be spring-biased with a spring or other device into a locked position. A user can apply a force against the slide lock in the direction “B” to move the slide lock 504 from the locked to the unlocked position.

The one-hand rail release mechanism 502 can also include a release button 506. In one example, the release button 506 can be disposed generally along the bottom end of the grip surface. The release button 506 can be spring-biased with a spring or other device into an extended position. A user can apply a generally upward force on the release button 506 to depress the button 506 into a retracted position. The one-hand rail release mechanism 502 can also be coupled to a first cable 508 and a second cable 510. In one example, the first cable 508 can extend through one or more railings, including the top rail 106A and is attached at a distal end to the slide plate of the rail locking mechanism 118B. Further, the second cable 510 can extend through one or more railings, including the top rail 104A and is attached at a distal end to the slide plate of the rail locking mechanism 118A.

The one-hand rail release mechanism 502 can also include a cable tensioner. The cable tensioner can be employed by rotating the grip surface in the direction “C” from a first position to a second position when both the slide lock 504 is unlocked and the button 506 is depressed. In one example, the cable tensioner cannot be rotated unless both the slide lock 504 is unlocked and the button 506 is depressed. The cable tensioner can be spring-biased with a spring or other device into the first position.

In use, the user can use a single hand to slide the slide lock 504 in the direction “B” from the locked to the unlocked position, depress the release button 506, and rotate the grip surface of the mechanism 502 in the direction “C”. The rotation of the mechanism 502 in the direction “C” will generate a tension on each of the cables 508, 510 and pull each of the slide plates in the direction “A” from the locked to the unlocked position, thereby allowing the second rivets 220, 222 to exit the corresponding locking slots 212, 216 and allowing the top rails 104A, 104B, 106A, 106B to rotate from a generally horizontal position to a vertical or substantially vertical position as the playard is adjusted from the use configuration to the folded configuration, as shown in FIGS. 11A-11C.

FIG. 6 is a perspective view of an end wall support system for the foldable playard 100 according to one example embodiment of the disclosure. Referring now to FIGS. 1 and 6, the example end wall support system can include a pair of vertical support members 116 each coupled at one end to the leg support 108 and coupled at a distal second end to the top rails 104A, 106A. The vertical support members 116 can be spaced apart with an opening provided therebetween. In the opening, a support tower 602 or secondary support can be coupled along a first side to the first vertical support member 116 and along a second opposing side to the second vertical support member 116. In one example, the support tower 602 has the shape of a rounded rectangle, however other shapes are contemplated herein. Further, while the support tower is shown as a single piece, in other example embodiments, multiple secondary supports may be used, each having a first portion coupled to the first vertical support 116 and a second portion coupled to the second vertical support 116.

In one example embodiment, the hinges 128, 130, 424 and 426 are coupled to the support tower 602. The use of the support tower 602 can eliminate the need for corner posts on each corner of the playard 100. This allows for the use of mesh material 126 along the corners of the playard 100 rather than an opaque material such as a plastic or metal corner post and/or fabric or other soft goods surrounding that corner post, resulting in a more open and visible playard 100.

FIGS. 7A-7B are various views of another rail locking mechanism that can be used with the foldable playard 100 according to one example embodiment of the disclosure. Now referring to FIGS. 1 and 7A-7B, the geared rail locking mechanism 118A, 118B will be described with reference to mechanism 118A and top rails 104A and 104B. However, it is understood that the playard includes another rail locking mechanism 118B that interacts with top rails 106A and 106B in a manner substantially the same as will be described with 118A, 104A, and 104B. The rail locking mechanism 118A can include a housing 702 that can include two opposing ends 710. 712 that define passageways, one 710 for receiving an end portion of the top rail 104A and another 712 end for receiving an end portion of the top rail 104B. The housing includes a top cover and a pair of side walls to prevent access to potential pinch points.

At least partially disposed within the housing 702 is a first gear latch 704 and a second gear latch 706. Each of the first 704 and second 706 gear latches can be rotatably coupled to the housing via a pin axle or other device. Each of the first 704 and second 706 gear latches includes a main body with an outer surface. Along at least a portion of the outer surface are multiple gear teeth 708 that engage with the gear teeth 708 on the other gear latch. Each of the gear latches 704, 706 also include a curved recessed surface 714 for receiving at least a portion of the corresponding top rail 104A, 104B thereon. In one example, the curved recessed surface 714 has a depth of less than one inch, such that less than one inch of the bottom surface of the end of the corresponding top rail 104A, 104B can rest on the curved recessed surface 714 when the mechanism 118A is in the locked configuration.

Each gear latch 704, 706 can also include a tube wing 716. The tube wing 716 is generally positioned immediately below the curved recessed surface 714. The tube wing 716 can include a straight or arcuate top edge that extends from the curved recessed surface 714 and projects downward therefrom to provide a sliding surface for the corresponding top rail 104A, 104B when the top rail is not in the curved recessed surface 714. The first gear latch 704 can also include a cable aperture 718 for receiving and coupling a release cable (such as the release cable 510 in FIG. 5) thereto.

As tension is applied to a cable, it causes the first gear latch 704 to rotate in the direction “D”. The gear teeth 708 of the first gear latch 704 interact with the gear teeth 708 of the second gear latch 706 to cause a corresponding rotation of the second gear latch 706 in the direction “E”. The rotation of both the first gear latch 704 and the second gear latch 706 at substantially the same rate causes both the top rail 104A and the top rail 104B to slip out of the corresponding curved recess surfaces 714 and to begin sliding down the corresponding tube wing 718 in each gear latch 704, 706. The top rails 104A, 104B are then able to rotate from the horizontal position to a vertical or substantially vertical position as the playard 100 is adjusted from the use configuration to the folded configuration, as shown in FIGS. 11A-11C. As the top rails are rotating downward, each tube wing 716 prevents its corresponding top rail 104A, 104B from moving back up into the curved recess surface 714 and into the locked position.

FIG. 8 is a partial perspective view of another rail release mechanism for use with the foldable playard 100 according to one example embodiment of the disclosure. While the example embodiment of FIG. 8 shows only one rail release mechanism, it is understood that more than one can be provided, such as two, one for releasing rail locking mechanism 118A and another for releasing rail locking mechanism 118B. FIG. 8 will be described with reference to top rails 104A, 104B and rail locking mechanism 118A. However, it is understood that a second rail release mechanism for use with top rails 106A, 106B and rail locking mechanism 118A can be constructed an operate in substantially the same manner.

Referring now to FIGS. 1 and 8, the rail release mechanism can be rotatably coupled to the top rail overhang 102 via a coupling device 804, such as a pin, nut and bolt, or other known device. The rail release mechanism can include a trigger member 802 that extends from the coupling point 804 and is rotatable about the coupling point 804. In one example, the rail release mechanism can also include a spring or other biasing device to bias the trigger member 802 in a first position. One end of a cable (such as the cable 510 of FIG. 5) can be coupled to the trigger member 802 and the other end of the cable can be coupled to the slide plate of the rail locking mechanism 118A. When a user pulls, pushes, presses, or otherwise engages the trigger member 802 from the first position towards a second position, it will cause the trigger member 802 to rotate about the coupling point 804 and generate a tension on the cable that can pull the slide plate from the locked to the unlocked position, thereby allowing the top rails 104A, 104B to rotate from the horizontal position to the vertical or substantially vertical position as the playard 100 is adjusted from a use configuration to a folded configuration, as shown in FIGS. 11A-11C.

FIGS. 9A-9B are various views of a vertically telescoping vertical support system that can be incorporated into the foldable playard 100 according to one example embodiment of the disclosure. Referring to FIGS. 1, 9A, and 9B, the vertically telescoping vertical support system can include a pair of vertically extending supports 116A, 116B. Each vertically extending support 116A, 116B can include a first member 902A, 902B and a second member 904A, 904B. The second member 904A, 904B can include a channel or hollow passageway that extends along the longitudinal axis of the corresponding second member 904A, 904B and is configured to receive at least a portion of the corresponding first member 906A, 906B therein. The second member 904A, 904B can include a first end coupled to the leg support 108 and a distal second end that extends vertically up from the leg support 108. The first member 902A, 902B can include a first end coupled to the top rail overhang 102 and a distal second end that extends vertically downward from the top rail overhang 102. The second end of the first member 902A, 902B is disposed within the channel of the corresponding second member 904A, 904B. The channel of one or both of the second members 904A, 904B can also include a manually adjustable latching mechanism 908.

One or both of the first members 902A, 902B can also include a channel or hollow passageway extending along the longitudinal axis of the corresponding first member 902A, 902B. An actuator mechanism 906A, 906B, such as a cable or metal rod, can be disposed within the channel of one or both of the first members 902A, 902B. One end of the actuator mechanism 906A, 906B can operably engage the rotating latch 908. For example, each first member 902A, 902B can include a hole or opening in the outer wall of the corresponding first member 902A, 902B that the rotating latch 908 can engage/be disposed at least partially within (to hold the first member 902A, 902B in the extended position) and disengage (to allow the first member 902A, 902B to slide into the corresponding second member 904A, 904B in a telescoping manner) to reduce the overall height of the playard 100 when it is in the folded configuration, as shown in FIG. 11C. The other end of the actuator mechanism 906A, 906B can be operably coupled to an actuator 910. The actuator 910 can include a handle 912. Pulling or squeezing the handle 912 can cause a corresponding movement in each of the actuator mechanisms 906A, 906B and cause the latch 908 to rotate from a first position (where it is at least partially within an aperture of the first member 902A, 902B) to a second position (where it is completely out of the aperture in the first member 902A, 902B) and allows the first member 902A, 902B to slide further downward into the channel of the second member 904A, 904B.

In one example, the handle 912 remains in the pressed or squeezed position until the first members 902A, 902B are raised back out of the channel of the corresponding second members 904A, 904B and the latch 908 rotates back into engagement with the hole in the corresponding first member 902A, 902B. In this example embodiment, the handle 912 can act as a lockout feature, preventing the playard 100 from being adjusted from the folded configuration into the use configuration until one or more latches 908 re-engage with the corresponding first members 902A, 902B. In addition, in certain example embodiments, when the handle 912 is pressed or squeezed, in can be at least partially positioned within a groove on the top rail 102. By fitting a portion of the handle 912 in the top rail 102 when pressed or squeezed, the top rails 104A, 104B, 106A, 106B cannot be unfolded until the first members 902A, 902B are raised back out of the channel of the corresponding second members 904A, 904B and the latch 908 rotates back into engagement with the hole in the corresponding first member 902A, 902B, allowing the handle 912 to be released back into its unpressed/unsqueezed position

FIGS. 10A-10B are various views of another rail locking mechanism for the foldable playard 100 according to one example embodiment of the disclosure. The example of FIGS. 10A-10B is a modification of the slide plate 202 of FIGS. 2A-2B. Now referring to FIGS. 1 and 10A-10B, the rail locking mechanism 118A, 118B will be described with reference to mechanism 118A and top rails 104A and 104B. However, it is understood that the playard 100 includes another rail locking mechanism 118B that interacts with top rails 106A and 106B in a manner substantially the same as will be described with reference to 118A, 104A, and 104B. As shown in FIGS. 10A-10B, the top rail 104A can include a first rivet 208 and a second rivet 220. The top rail 104B can include a first rivet 210 and a second rivet 222. Each of the rivets 208, 210, 220, 222 can extend through the body of the respective top rail in a direction orthogonal or substantially orthogonal to the longitudinal axis of the respective top rail.

Each of the ends of the top rails 104A, 104B can include a slotted opening disposed through a portion of the end of the respective top rail and extending along the longitudinal axis of the respective top rail. The rail locking mechanism 118A can also include a slide plate 1002 that can be at least partially disposed within the respective slotted openings of each of the top rails 104A, 104B. The slide plate 1002 can include a first enclosed slot 1004 for receiving the first rivet 208 of the top rail 104A and a second enclosed slot 1006 for receiving the first rivet 210 of the top rail 104B. Each of the first enclosed slot 1004 and second enclosed slot 1006 can extend generally in the longitudinal direction of the top rails 104A, 104B when the playard 100 is in the use configuration. Each of the first enclosed slot 1004 and the second enclosed slot 1006 are configured to maintain each of the top rail 104A and top rail 104B in slidable connection with the rail locking mechanism 118A.

The rail locking mechanism 118A can also include a first locking slot 1008 and a second locking slot 1010. The first locking slot 1008 can be configured to receive the second rivet 220 of the top rail 104A. The first locking slot 1008 can include an opening along a portion of the bottom end of the first locking slot 1008 that leads into a rivet cam or pathway 1020 that the second rivet 220 follows when the rail locking mechanism 118A is in the unlocked position and when the playard 100 is being adjusted from the use configuration to the folded configuration, as shown in FIGS. 11A-11C. In one example, the rivet path 1020 is curved.

The second locking slot 1010 can be configured to receive the second rivet 222 of the top rail 104B. The second locking slot 1010 can include an opening along a portion of the bottom end of the first locking slot 1008 that leads into a rivet cam or pathway 1022 that the second rivet 222 follows when the rail locking mechanism 118A is in the unlocked position and when the playard 100 is being adjusted from the use configuration to the folded configuration, as shown in FIGS. 11A-11C. In one example, the rivet path 1022 for the rivet 222 is curved in a direction opposite the rivet path for the second rivet 220

The rail locking mechanism 118A of FIGS. 10A-10B can also include a cable attachment aperture (not shown) for attaching a cable (not shown) thereto. The cable can extend through an internal passageway of the top rail 104A and another cable or the same cable can also extend through the internal passageway of the top rail 106A from the corresponding cable attachments 224 of the rail locking mechanisms 118A, 118B to a rail release mechanism, described hereinafter. The rail release mechanism can cause tension in the cable (or each of the cables) that pulls the corresponding rail locking mechanisms 118A, 118B in the direction “A” from a locked position to an unlocked position. In the unlocked position, the second rivets 220, 222 can pass through the corresponding opening in the bottom of each of the respective first locking slot 1008 and second locking slot 1010. Once the second rivets 220, 222 pass through the corresponding opening, each second rivet 220, 222 can continue to move along the corresponding rivet paths 1020, 1022 as the corresponding top rail 104A, 104B rotates from a generally horizontal position to a vertical or substantially vertical position as the playard 100 is adjusted into the folded configuration, as shown in FIG. 11C.

Each rail locking mechanism 118A can also include a spring biasing mechanism (not shown) coupled to the slide plate 1002. The spring biasing mechanism can bias the slide plate 1002 into the locked position. The rail locking mechanism 118A can also include a top cover plate or saddle that is disposed over at least a portion of the top surface of the corresponding rail locking mechanism 118A, 118B. The saddle can be configured to limit access to the portion of the mechanism 118A where the ends of the top rails 104A, 104B abut in the use configuration and create a potential pinch point. Similarly, the rail locking mechanism 118A can also include a pair of side plates, each disposed on at least a portion of the opposing lateral sides of the top rails 104A, 104B. In one example embodiment, the side plates can be movably coupled to the top rail 104A via the first rivet 208 and to the top rail 104B via the first rivet 210.

FIGS. 12A-D present various views of another foldable child containment system 1200 in the use configuration, in accordance with one example embodiment of the disclosure. For example, FIG. 12A presents a perspective view of the frame structure for the foldable child containment system 1200 without the soft goods making up the side walls, end walls and bottom panel being shown in accordance with on example embodiment. Referring to FIG. 12A, the foldable child containment system 1200, referred to hereinafter as a “playard” for example, can include a frame assembly that supports and defines a play surface or bottom/floor panel that is substantially the same as the play surface 150 of FIG. 1, suspended above a floor or other ground surface that the playard 1200 is placed upon. In one example, when the soft goods are coupled to the frame assembly 1202 (e.g., at least one or more of the top side rails and the top end rails), the frame assembly 1202 and the soft goods define a rectangular or substantially rectangular base surface or floor panel, a pair of opposed side walls or panels and a pair of opposed end walls or panels. The walls/panels can extend upward from the floor panel to surround the floor panel and define, along with the floor panel, a child containment area for an infant or toddler. The walls can be generally formed of soft goods, such as fabric material substantially similar to the fabric material 122, 124 and see-through mesh material 126 of FIG. 1 and can be suspended from or otherwise supported by the frame assembly 1202 similar to that shown in FIG. 1. In one example, at least a portion of the frame assembly 1202 can be covered by fabric or another form of soft goods and can thus be largely concealed from view.

In one example, the frame assembly 1202 can include opposing top end rails 1214, 1216 disposed along the top portion of the corresponding end walls. Each of the top end rails 1214, 1216 can be constructed of plastic or metal and can be a tube that includes a hollow channel extending from a first end to an opposing second end of each of the top end rails 1214, 1216.

The frame assembly 1202 can further include a pair of top side rail assemblies. Each top side rail assembly can include a first top side rail 1220, 1224, a second top side rail 1218, 1222 and a rail locking mechanism 1226A, 1226B. Each of the top side rail assemblies can have a first end and a distal second end and can extend generally from the one top end rail 1214 to the other top end rail 1216.

For example, the top end rail 1214 can have a first end coupled to the first top rail coupling housing 1232A and a second distal end coupled to the second top rail coupling housing 1232B. The top side rail 1218 can have a first end pivotably coupled to the second top rail coupling housing 1232B and a second distal end pivotally coupled to the first rail locking mechanism 1226A. The top side rail 1218 can be configured to rotate about a first rotation axis at the pivotable coupling to the second top rail coupling housing 1232B and configured to rotate about a second rotation axis at the pivotable coupling to the first rail locking mechanism 1226A. In one example, the first rotation axis and the second rotation axis are parallel.

The top side rail 1220 can have a first end pivotably coupled to the fourth top rail coupling housing 1234B and a second distal end pivotally coupled to the first rail locking mechanism 1226A. The top side rail 1220 can be configured to rotate about a third rotation axis at the pivotable coupling to the fourth top rail coupling housing 1234B and configured to rotate about a fourth rotation axis at the pivotable coupling to the first rail locking mechanism 1226A. In one example, the first rotation axis, second rotation axis, third rotation axis, and fourth rotation axis are parallel to one another.

The top end rail 1216 can have a first end coupled to the third top rail coupling housing 1234A and a second distal end coupled to the fourth top rail coupling housing 1234B. The top side rail 1224 can have a first end pivotably coupled to the third top rail coupling housing 1234A and a second distal end pivotally coupled to the second rail locking mechanism 1226B. The top side rail 1224 can be configured to rotate about a fifth rotation axis at the pivotable coupling to the third top rail coupling housing 1234A and configured to rotate about a sixth rotation axis at the pivotable coupling to the second rail locking mechanism 1226B. In one example, the first rotation axis, second rotation axis, third rotation axis, fourth rotation axis, fifth rotation axis, and sixth rotation axis are parallel to one another.

The top side rail 1222 can have a first end pivotably coupled to the first top rail coupling housing 1232A and a second distal end pivotally coupled to the second rail locking mechanism 1226B. The top side rail 1222 can be configured to rotate about a seventh rotation axis at the pivotable coupling to the first top rail coupling housing 1232A and configured to rotate about an eighth rotation axis at the pivotable coupling to the second rail locking mechanism 1226B. In one example, the first rotation axis, second rotation axis, third rotation axis, fourth rotation axis, fifth rotation axis, sixth rotation axis, seventh rotation axis, and eighth rotation axis are parallel to one another.

Each of the top side rails 1218, 1220, 1222, 1224 and top end rails 1216, 1218 are horizontal or substantially horizontally positioned when the foldable playard 1200 is in the use configuration. Further, the top side rails 1218, 1220, 1222, 1224 are vertically or substantially vertically positioned and the top end rails 1216, 1218 are horizontal or substantially horizontally positioned when the foldable playard 1200 is in the folded or stored configuration.

A first corner post 1204 has a first end coupled to the first top rail coupling housing 1232A and a second distal end pivotably coupled to a first support foot 1228A. A second corner post 1206 can have a first end coupled to the second top rail coupling housing 1232B and a second distal end pivotably coupled to a second support foot 1228B. A third corner post 1208 can have a first end coupled to the third top rail coupling housing 1234A and a distal second end pivotably coupled to a third support foot 1230A. A fourth corner post 1210 can have a first end coupled to the fourth top rail coupling housing and a distal second end pivotably coupled to a fourth support foot 1230B.

Each of the first corner post 1204, second corner post 1206, third corner post 1208, and fourth corner post 1210 can extend vertically or substantially vertically between the respective support foot and the respective top rail coupling housing and can be configured to provide vertical support to the top side rails 1218, 1220, 1222, 1224, top end rails 1216, 1218, and top rail coupling housings 1232A, 1232B, 1234A, 1234B. Each of the first corner post 1204, second corner post 1206, third corner post 1208, and fourth corner post 1210 can extend vertically or substantially vertically when the foldable playard 1200 is in the use configuration and when the system 1200 is in the stored or folded configuration. However, as the foldably playard 1200 is being manipulated between the use configuration and the stored or folded configuration, one or more of the corner posts 1204, 1206, 1208, 1210 may be angled from the vertical orientation anywhere in the range of 20-80 degrees.

The foldable playard 1200 can also include a bottom rail support system 1212 pivotably coupled to each of the first support foot 1228A, second support foot 1228B, third support foot 1230A, and fourth support foot 1230B. The bottom rail support system can include multiple bottom support rails. Each bottom support rail can extend horizontally or substantially horizontally from its respective support foot when the foldable playard 1200 is in the use configuration. The bottom rail support system 1212 can also include bottom rail folding hub assembly 1254, as shown in FIG. 12B. In one example, the bottom rail folding hub assembly 1254 can be centrally or substantially centrally positioned within the bottom rail support system 1212 and with respect to the corner posts 1204-1210. Each of the bottom support rails can be directly or indirectly pivotably coupled to the bottom rail folding hub 1254. The bottom rail support system 1212 can also include one or more hub support arms 1244, 1246 that extend out from a first end at the bottom rail folding hub 1254 and extend to a second distal end that contacts the floor or other surface that the system 1200 rests upon. The first support foot 1228A, second support foot 1228B, third support foot 1230A, fourth support foot 1230B, first hub support arm 1244 and second hub support arm 1246 each include a bottom portion that is planar or substantially planar and is designed to contact the floor or other surface that the playard 1200 is placed upon. Further each foot 1228A, 1228B, 1230A, 1230B can also include vertically extending outer side surface. At least a portion of this side surface can be planar or substantially planar. The planar or substantially planar portion of the vertically extending outer side surface on each foot 1228A, 1228B, 1230A, 1230B allows the playard 1200 to also rest or otherwise be supported in an upright position by the feet 1228A, 1228B, 1230A, 1230B when each foot is rotated at or substantially 90 degrees with respect to its corresponding corner post when the playard 1200 is adjusted from a use or unfolded configuration to a folded or stored configuration.

The bottom rail folding hub 1254 can also include a pull strap 1255 coupled to the bottom rail folding hub 1255. The pull strap 1255 can be constructed of a fabric material. In certain example embodiments, the pull strap 1255 can be formed to create a loop that is configured to receive a hand or portion of a hand therethrough to grip the pull strap 1255. The pull strap 1255 can be positioned along the top side of the bottom rail folding hub. In some example embodiments, the pull strap 1255 can extend through an opening in the soft goods floor panel of the playard 1200. A user can reach into the cavity defined by the side walls and floor panel of the playard 1200, grasp the pull strap 1255 and lift the pull strap 1255 vertically to pull the bottom rail folding hub 1254 up vertically to begin the process of changing the playard from the use configuration to the folded configuration.

For example, the first support foot 1228A can include a housing that includes a bottom side configured to rest upon a floor or other surface. On the opposing end from the bottom side, the first corner post 1204 can be pivotably coupled to and extend vertically up from the first support foot 1228A. For example, the first support foot 1228A can include a hinge pin and the first corner post 1204 can include a pair of apertures or a channel extending along an axis orthogonal to the longitudinal axis of the first corner post 1204. The hinge pin can be coupled along distal ends to the first support foot 1228A and can extend through the channel or apertures near the second end of the first corner post 1204 to provide a ninth axis of rotation about which the first support foot 1228A can rotate with respect to the first corner post 1204.

The first support foot 1228A can also be coupled to the first bottom support rail 1236 along a first end of the first bottom support rail 1236. For example, the first support foot 1228A can include a coupling device for coupling the first bottom support rail 1236 to the first support foot 1228A. The second end of the first bottom support rail 1236 can be directly or indirectly pivotably coupled to the bottom rail folding hub 1254. For example, the bottom rail folding hub 1254 can include a first coupling rod 1250 pivotably coupled to the hub 1254 and extending out horizontally out from the hub 1254 in a first direction from the hub 1254 and a second coupling rod 1252 pivotably coupled to the hub 1254 and extending horizontally out from the hub 1254 in a second direction from the hub 1254 opposite that of the first direction from hub 1254. For example, the first coupling rod 1250 or the first bottom rail support 1236 and the second bottom rail support 1238 can be coupled to the hub 1254 by one or more hinge pins 1258 or other rotation means to provide a thirteen axis of rotation that is parallel or substantially parallel with the first through twelfth axes of rotation. Further, the second coupling rod 1252 or the third bottom rail support 1240 and the fourth bottom rail support 1242 can be coupled to the hub 1254 by one or more hinge pins 1256 or other rotation means to provide a fourteenth axis of rotation that is parallel or substantially parallel with the first through thirteenth axes of rotation.

The first bottom support rail 1236 can be indirectly pivotably coupled to the hub 1254 by being fixedly coupled to the first coupling rod 1250, which is pivotably coupled to the hub 1254. In an alternate embodiment, the second end of the first bottom support rail 1236 can be directly pivotably coupled to the hub 1254. The first bottom support rail 1236 can include three generally straight sections and two curved sections such that a first curved section is positioned between the first generally straight section and the second generally straight section and the second curved section is positioned between the second generally straight section and the third generally straight section to provide the first bottom support rail 1236 with a generally “S” or “Z” shaped profile.

The second support foot 1228B can include a housing that includes a bottom side configured to rest upon a floor or other surface. On the opposing end from the bottom side, the second corner post 1206 can be pivotably coupled to and extend vertically up from the second support foot 1228B. For example, the second support foot 1228B can include a hinge pin and the second corner post 1206 can include a pair of apertures or a channel extending along an axis orthogonal to the longitudinal axis of the second corner post 1206. The hinge pin can be coupled along distal ends to the second support foot 1228B and can extend through the channel or apertures near the second end of the second corner post 1206 to provide a tenth axis of rotation about which the second support foot 1228B can rotate with respect to the second corner post 1206.

The second support foot 1228B can also be coupled to the second bottom support rail 1238 along a first end of the second bottom support rail 1238. For example, the second support foot 1228B can include a coupling device for coupling the second bottom support rail 1238 to the second support foot 1228B. The second end of the second bottom support rail 1238 can be directly or indirectly pivotably coupled to the bottom rail folding hub 1254. In one example embodiment, the second bottom support rail 1238 can be indirectly pivotably coupled to the hub 1254 by being fixedly coupled to the first coupling rod 1250, which is pivotably coupled to the hub 1254. In an alternate embodiment, the second end of the second bottom support rail 1238 can be directly pivotably coupled to the hub 1254. The second bottom support rail 1238 can include three generally straight sections and two curved sections such that a first curved section is positioned between the first generally straight section and the second generally straight section and the second curved section is positioned between the second generally straight section and the third generally straight section to provide the second bottom support rail 1238 with a generally “S” or “Z” shaped profile.

As shown in FIGS. 12A and 12C, the third support foot 1230A can include a housing 1270 that includes a bottom side 1271 configured to rest upon a floor or other surface. In one example, the housing 1270 can be made of plastic, metal, or a combination of plastic and metal. The housing 1270 can include a horizontal cavity or channel 1272 for receiving therein a portion of the third bottom support rail 1240. The housing 1270 can also include a second cavity or channel 1273 for receiving therein a portion of the third corner post 1208. On the opposing end from the bottom side 1271, the third corner post 1208 can be pivotably coupled to and extend vertically up from the third support foot 1230A. For example, the third support foot 1230A can include a hinge pin 1264 and the third corner post 1208 can include a pair of apertures or a channel extending along an axis orthogonal to the longitudinal axis Y of the third corner post 1208. The hinge pin 1264 can be coupled adjacent the distal end to the third support foot 1230A and can extend through the channel or apertures near the second end of the third corner post 1208 to provide an eleventh axis of rotation about which the third support foot 1230A can rotate with respect to the third corner post 1208. The hinge pin and coupling of the corner post to the support foot can be substantially the same for the first corner post 1204 and first support foot 1228A and the second corner post 1206 and second support foot 1228B.

The third corner post 1208 can also include a pulley or other curved surface 1268 positioned along the second end of the third corner post 1208 and disposed within the housing 1270 of the third support foot 1230A. When a curved surface is employed rather than a pulley, the curvature can be convex with respect to the end of the third corner post 1208 to provide a generally rounded protruding end to the third corner post 1208.

The third support foot 1230A can also be coupled to the third bottom support rail 1240 along a first end of the third bottom support rail 1240. In one example, the third bottom support rail 1240 is fixedly coupled to the third support foot 1230A so that a movement of the third bottom support rail 1240 causes a corresponding movement in the third support foot 1230A. For example, at least a portion of the third bottom support rail 1240 can be inserted into the cavity 1272 of the housing 1270. A coupling device 1262 can then be used to fixedly couple the third bottom support rail 1240 to the third support foot 1230A. The coupling device can be a screw, rivet, pin or similar coupling device.

In one example, a first end of a cable or wire 1260 can be coupled to the third bottom support rail 1240 adjacent to the first end of the third bottom support rail 1240. For example, the third bottom support rail 1240 can include a cable retaining aperture 1266 or eyelet for coupling the cable or wire 1260 to the third bottom support rail 1240. In an alternate example, the cable or wire 1260 can be coupled to a portion of the fourth support foot 1230B, which can be adjacent to the fourth bottom support rail 1242. The cable or wire 1260 can then extend up along the pulley or curved surface 1268 and through a channel 1275 in the third corner post 1208 that extends along the longitudinal axis Y of the third corner post 1208. The cable or wire 1260 can exit the distal first end of the third corner post 1208 at the third top corner housing 1234A and can enter and extend along a channel of the top side rail 1224. The second end of the cable or wire 1260 can be coupled to a portion of the second rail locking mechanism 1226B as discussed in more detail below.

The second end of the third bottom support rail 1240 can be directly or indirectly pivotably coupled to the bottom rail folding hub 1254. In one example embodiment, the third bottom support rail 1240 can be indirectly pivotably coupled to the hub 1254 by being fixedly coupled to the second coupling rod 1252, which is pivotably coupled to the hub 1254. In an alternate embodiment, the second end of the third bottom support rail 1240 can be directly pivotably coupled to the hub 1254. The third bottom support rail 1240 can include three generally straight sections and two curved sections such that a first curved section is positioned between the first generally straight section and the second generally straight section and the second curved section is positioned between the second generally straight section and the third generally straight section to provide the third bottom support rail 1240 with a generally “S” or “Z” shaped profile.

In operation, when the foldable playard 1200 is in the use, unfolded configuration and a user begins to fold the system 1200 by pulling up in the vertical direction on the hub 1254, the third corner post 1208 can rotate in the direction B with respect to the third support foot 1230A and the third support foot 1230A can rotate in the direction A with respect to the third corner post 1208. The rotation of the third support foot 1230A with respect to the third corner post 1208 causes tension in the cable or wire 1264 and causes it to move around the outer perimeter of the pulley 1268 or curved outer surface. As the foot 1230A is rotated further with respect to the third corner post 1208, the cable or wire 1264 is pulled further in the downward direction through the channel 1275 of the third corner post 1208 and laterally through the channel of the top side rail 1224 to unlatch the rail locking mechanism 1226B to release the top side rail 1224 and 1222 for rotation with respect to the rail locking mechanism 1226B and the corresponding third corner post 1208 and first corner post 1204. Each of the third support foot 1230A and third corner post 1208 can rotate in opposite directions of A and B respectively when being adjusted from the folded, stored configuration to the use, unfolded configuration.

As also seen in FIGS. 12A-C, the fourth support foot 1230B can include also include a housing 1270 that includes a bottom side 1271 configured to rest upon a floor or other surface. In one example, the housing 1270 can be made of plastic, metal, or a combination of plastic and metal. The housing 1270 can include a horizontal cavity or channel 1272 for receiving therein a portion of the third bottom support rail 1240. The housing 1270 can also include a second cavity or channel 1273 for receiving therein a portion of the fourth corner post 1210. On the opposing end from the bottom side 1271, the fourth corner post 1210 can be pivotably coupled to and extend vertically up from the fourth support foot 1230B. For example, the fourth support foot 1230B can include a hinge pin 1264 and the fourth corner post 1210 can include a pair of apertures or a channel extending along an axis orthogonal to the longitudinal axis Y of the fourth corner post 1210. The hinge pin 1264 can be coupled adjacent the distal second end to the fourth support foot 1230B and can extend through the channel or apertures near the second end of the fourth corner post 1210 to provide an twelfth axis of rotation about which the fourth support foot 1230B can rotate with respect to the fourth corner post 1210.

The fourth corner post 1210 can also include a pulley or other curved surface 1268 positioned along the second end of the fourth corner post 1210 and disposed within the housing 1270 of the fourth support foot 1230B. When a curved surface is employed rather than a pulley, the curvature can be convex with respect to the end of the fourth corner post 1210 to provide a generally rounded protruding end to the fourth corner post 1210.

The fourth support foot 1230B can also be coupled to the fourth bottom support rail 1242 along a first end of the fourth bottom support rail 1242. In one example, the fourth bottom support rail 1242 is fixedly coupled to the fourth support foot 1230B so that a movement of the fourth bottom support rail 1242 causes a corresponding movement in the fourth support foot 1230B. For example, at least a portion of the fourth bottom support rail 1242 can be inserted into the cavity 1272 of the housing 1270. A coupling device 1262 can then be used to fixedly couple the fourth bottom support rail 1242 to the fourth support foot 1230B. The coupling device can be a screw, rivet, pin or similar coupling device.

In one example, a first end of a cable or wire 1260 can be coupled to the fourth bottom support rail 1242 adjacent to the first end of the fourth bottom support rail 1242. For example, the fourth bottom support rail 1242 can include a cable retaining aperture 1266 or eyelet for coupling the cable or wire 1260 to the fourth bottom support rail 1242. In an alternate example, the cable or wire 1260 can be coupled to a portion of the fourth support foot 1230B, which can be adjacent to the fourth bottom support rail 1242. The cable or wire 1260 can then extend up along the pulley or curved surface 1268 and through a channel 1275 in the fourth corner post 1210 that extends along the longitudinal axis Y of the fourth corner post 1210. The cable or wire 1260 can exit the distal first end of the fourth corner post 1210 at the fourth top corner housing 1234B and can enter and extend along a channel of the top side rail 1220. The second end of the cable or wire 1260 can be coupled to a portion of the first rail locking mechanism 1226A as discussed in more detail below.

The second end of the fourth bottom support rail 1242 can be directly or indirectly pivotably coupled to the bottom rail folding hub 1254. In one example embodiment, the fourth bottom support rail 1242 can be indirectly pivotably coupled to the hub 1254 by being fixedly coupled to the second coupling rod 1252, which is pivotably coupled to the hub 1254. In an alternate embodiment, the second end of the fourth bottom support rail 1242 can be directly pivotably coupled to the hub 1254.

The fourth bottom support rail 1242 can include three generally straight sections and two curved sections such that a first curved section is positioned between the first generally straight section and the second generally straight section and the second curved section is positioned between the second generally straight section and the third generally straight section to provide the fourth bottom support rail 1242 with a generally “S” or “Z” shaped profile.

In operation, when the foldable playard 1200 is in the use, unfolded configuration and a user begins to fold the system 1200 by pulling up in the vertical direction on the hub 1254, the fourth corner post 1210 can rotate in the direction B with respect to the fourth support foot 1230B and the fourth support foot 1230B can rotate in the direction A with respect to the fourth corner post 1210. The rotation of the fourth support foot 1230B with respect to the fourth corner post 1210 causes tension in the cable or wire 1264 and causes it to move around the outer perimeter of the pulley 1268 or curved outer surface. As the foot 1230B is rotated further with respect to the fourth corner post 1210, the cable or wire 1264 is pulled further in the downward direction through the channel 1275 of the fourth corner post 1210 and laterally through the channel of the top side rail 1220 to unlatch the rail locking mechanism 1226A to release the top side rail 1220 and 1218 for rotation with respect to the rail locking mechanism 1226A and the corresponding fourth corner post 1210 and second corner post 1206. Each of the fourth support foot 1230B and fourth corner post 1210 can rotate in opposite directions of A and B respectively when being adjusted from the folded, stored configuration to the use, unfolded configuration.

FIG. 12D is an elevation view of the rail locking mechanisms 1226A and 1226B for the foldable playard 1200 according to one example embodiment of the disclosure. Now referring to FIGS. 12A-D, the rail locking mechanism 1226A, 1226B will be described with reference to mechanism 1226A and top side rails 1218 and 1220. However, it is understood that the playard 1200 includes another rail locking mechanism 1226B that interacts with top side rails 1222 and 1224 in a manner substantially the same as will be described with reference to 1222, 1224, and 1226B.

As shown in FIG. 12D, the top side rail 1220 can include a first rivet, pin, post, or cam follower 1294 (hereinafter collectively referred to as a rivet 1294) and a second rivet, pin, post, or cam follower 1288 (hereinafter collectively referred to as a rivet 1288). The top side rail 1218 can include a first rivet, pin, post, or cam follower 1296 (hereinafter collectively referred to as a rivet 1296) and a second rivet, pin, post, or cam follower 1290 (hereinafter collectively referred to as a rivet 1290). Each of the rivets 1288, 1290, 1294, 1296 can extend through the body of the respective top side rail 1218, 1220 in a direction orthogonal or substantially orthogonal to the longitudinal axis of the respective top side rail 1218, 1220.

Each of the ends of the top side rails 1218, 1220 can include a slotted opening disposed through a portion of the end of the respective top side rail 1218, 1220 and extending along the longitudinal axis of the respective top side rail 1218, 1220. The rail locking mechanism 1226A can also include a slide plate 1274 that can be at least partially disposed within the respective slotted openings of each of the top side rails 1218, 1220. The slide plate 1274 can include a first enclosed slot 1284 for receiving the first rivet 1294 of the top side rail 1220 and a second enclosed slot 1286 for receiving the first rivet 1296 of the top side rail 1220. Each of the first enclosed slot 1284 and second enclosed slot 1286 can extend generally in the longitudinal direction of the top side rails 1220, 1218 when the playard 1200 is in the use configuration. Each of the first enclosed slot 1284 and the second enclosed slot 1286 are configured to maintain each of the top side rail 1220 and top side rail 1218 in slidable connection with the rail locking mechanism 1226A.

The rail locking mechanism 1226A can also include a first locking slot 1280 and a second locking slot 1282. The first locking slot 1280 can be configured to receive the second rivet 1288 of the top side rail 1220. The first locking slot 1280 can include an opening along a portion of the bottom end of the first locking slot 1280 that leads into a rivet cam or pathway 1276 that the second rivet 1288 follows when the rail locking mechanism 1226A is in the unlocked position and when the playard 1200 is being adjusted from the use configuration to the folded configuration, as shown in FIGS. 13A-13E. In one example, the rivet path 1276 is curved.

The second locking slot 1282 can be configured to receive the second rivet 1290 of the top side rail 1218. The second locking slot 1282 can include an opening along a portion of the bottom end of the second locking slot 1282 that leads into a rivet cam or pathway 1278 that the second rivet 1290 follows when the rail locking mechanism 1226A is in the unlocked position and when the playard 1200 is being adjusted from the use configuration to the folded configuration, as shown in FIGS. 13A-13E. In one example, the rivet path 1278 for the rivet 1290 is curved in a direction opposite the rivet path 1276 for the second rivet 1288.

The rail locking mechanism 1226A can also include a cable attachment aperture 1292 for attaching a cable 1260 thereto. The cable can extend through an internal passageway of the top side rail 1220 and another cable can also extend through the internal passageway of the top side rail 1224 from the corresponding cable attachments 1292 of the rail locking mechanisms 1226A, 1226B down through the channel 1275 of the corresponding fourth corner post 1210 or third corner post 1208 to the cable retaining aperture 1266 of FIG. 12C, described above. As discussed above, the rotation of the foot with respect to the corner post can cause tension in the corresponding cables 1260 that pulls the corresponding rail locking mechanisms 1226A, 1226B in the direction C from a locked position to an unlocked position. In the unlocked position, the second rivets 1288, 1290 can pass through the corresponding opening in the bottom of each of the respective first locking slot 1280 and second locking slot 1282. Once the second rivets 1288, 1290 pass through the corresponding opening, each second rivet 1288, 1290 can continue to move along the corresponding rivet paths 1276, 1278 as the corresponding top side rail 1220, 1218 rotates from a generally horizontal position to a vertical or substantially vertical position as the playard 1200 is adjusted into the folded configuration, as shown in FIG. 13D. For example, the top side rail 1220 can rotate in the direction D about a rotation axis defined by the first rivet 1294 with respect to the rail locking mechanism 1226A and the top side rail 1218 can rotate in the direction E about a rotation axis defined by the first rivet 1296 with respect to the rail locking mechanism 1226A.

Each rail locking mechanism 1226A can also include a spring biasing mechanism (not shown) coupled to the slide plate 1274. The spring biasing mechanism can bias the slide plate 1274 into the locked position (as shown in FIG. 12D). The rail locking mechanism 1226A can also include a top cover plate or saddle (not shown) that is disposed over at least a portion of the top surface of the corresponding rail locking mechanism 1226A, 1226B. The saddle can be configured to limit access to the portion of the mechanism 1226A where the ends of the top side rails 1218, 1220 abut in the use configuration and create a potential pinch point. Similarly, the rail locking mechanism 1226A can also include a pair of side plates (not shown), each disposed on at least a portion of the opposing lateral sides of the top side rails 1220, 1218. In one example embodiment, the side plates can be movably coupled to the top side rail 1220 via the first rivet 1294 and to the top side rail 1218 via the first rivet 1296.

FIGS. 13A-D are various views of a method for adjusting the foldable child containment system 1200 of FIGS. 12A-D from a use or unfolded configuration to a folded or stored configuration, according to one example embodiment of the disclosure. Referring now to FIGS. 12A-13E, as best shown in FIG. 13A, the user can grasp the pull handle 1255 coupled to the hub 1254 and can lift the hub upward vertically. As the hub 1254 moves upward vertically, it causes the ends of the first bottom rail 1236, second bottom rail 1238, third bottom rail 1240, and fourth bottom rail 1242 directly or indirectly coupled to the hub 1254 to move in a generally upward direction. The movement of the ends of first bottom rail 1236, second bottom rail 1238, third bottom rail 1240, and fourth bottom rail 1242 directly or indirectly coupled to the hub 1254 in the generally upward direction, cause the opposing ends of each of the first bottom rail 1236, second bottom rail 1238, third bottom rail 1240, and fourth bottom rail 1242 coupled to the respective feet 1228A, 1228B, 1230A, 1230B to cause those feet 1228A, 1228B, 1230A, 1230B to rotate with the opposing ends and in relation to the corresponding first corner post 1204, second corner post 1206, third corner post 1208, and fourth corner post 1210 in the direction of the arrows shown in FIG. 13A.

FIG. 13B shows the hub 1254 having been moved further vertically upward and away from the floor surface. The feet 1228A, 1228B, 1230A, 1230B have rotated further with regard to the corresponding first corner post 1204, second corner post 1206, third corner post 1208, and fourth corner post 1210. The rotation of the feet 1230A and 1230B, create a tension in the corresponding cables 1260 attached to each of the corresponding third corner post 1208 and fourth corner post 1210 or the corresponding foot 1230A and foot 1230B, as shown in FIG. 12C. This tension and rotation of the foot with respect to the corner post causes the cable 1260 to move about the pulley 1268 or curved bottom end of the corresponding corner post 1208, 1210. As the foot 1230A, 1230B is rotated further with respect to the corresponding corner post 1208, 1210 the cable or wire 1264 is pulled further in the downward direction through the channel 1275 of the corresponding corner post 1208, 1210 and laterally through the channel of the corresponding top side rail 1224, 1220. The lateral movement of the cable or wire 1264 through the channel of the corresponding top side rail 1220, 1224 at a force greater than the force of the spring biasing mechanism on the rail locking mechanism pulls the slide plate 1274 of the corresponding rail locking mechanism 1226B, 1226A in the direction C to unlatch the rail locking mechanisms 1226B, 1226A to release the top side rails 1224, 1222 and 1218, 1220 for rotation with respect to the corresponding rail locking mechanism 1226B, 1226A and the corresponding corner posts, as shown in FIG. 12D.

Pulling the corresponding rail locking mechanisms 1226A, 1226B in the direction C adjusts the mechanism from a locked position to an unlocked position. In the unlocked position, the second rivets 1288, 1290 can pass through the corresponding opening in the bottom of each of the respective first locking slot 1280 and second locking slot 1282. Once the second rivets 1288, 1290 pass through the corresponding opening, each second rivet 1288, 1290 can continue to move along the corresponding rivet paths 1276, 1278 as the corresponding top side rail 1220, 1218 rotates from a generally horizontal position to a vertical or substantially vertical position as the playard 1200 is adjusted into the folded configuration, as shown in FIGS. 13C-D. FIG. 13D shows a side view of the playard 1200 in the folded configuration and FIG. 13E shows an end view of the playard 1200 in the folded configuration. As shown in FIGS. 13D-E, each of the top side rails 1218, 1220, 1222, and 1224, have rotated from a substantially horizontal position in the use configuration to a substantially vertical position in the folded configuration. Similarly, each of the first bottom rail 1236, second bottom rail 1238, third bottom rail 1240, and fourth bottom rail 1242 have rotated from a substantially horizontal position in the use configuration to a substantially vertical position in the folded configuration. The top end rail 1214 and top end rail 1216 have remained in the substantially horizontal position in the use configuration, the folded configuration and while the playard 1200 was being adjusted from the use configuration to the folded configuration. Further, in the folded or stored configuration, the playard 1200 is capable of remaining standing in the upright position on the rotated feet 1228A, 1228B, 1230A, 1230B.

Though the disclosed example includes a particular arrangement of a number of parts, components, features, and aspects, the disclosure is not limited to only that example or arrangement. Any one or more of the parts, components, features, and aspects of the disclosure can be employed alone or in other arrangements of any two or more of the same.

Although certain playard features, functions, components, and parts have been described herein in accordance with the teachings of the present disclosure, the scope of coverage of this patent is not limited thereto. On the contrary, this patent covers all embodiments of the teachings of the disclosure that fairly fall within the scope of permissible equivalents.

Conditional language, such as, among others, “can,” “could,” “might,” or “may,” unless specifically stated otherwise, or otherwise understood within the context as used, is generally intended to convey that certain implementations could include, while other implementations do not include, certain features, elements, and/or operations. Thus, such conditional language generally is not intended to imply that features, elements, and/or operations are in any way required for one or more implementations or that one or more implementations necessarily include logic for deciding, with or without user input or prompting, whether these features, elements, and/or operations are included or are to be performed in any particular implementation.

Many modifications and other implementations of the disclosure set forth herein will be apparent having the benefit of the teachings presented in the foregoing descriptions and the associated drawings. Therefore, it is to be understood that the disclosure is not to be limited to the specific implementations disclosed and that modifications and other implementations are intended to be included within the scope of the appended claims. Although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation. 

What is claimed is:
 1. A playard configured to be foldable from a use configuration to a folded configuration, the playard comprising: a foldable playard frame comprising: a bottom rail support assembly comprising a first bottom support rail, a second bottom support rail and a hub assembly coupled to the first bottom support rail and the second bottom support rail; a top rail support assembly comprising a first top rail member and a second top rail member; a plurality of corner post members comprising a first corner post member and a second corner post member, each of the plurality of corner post members operatively coupling a portion of the top rail support assembly to a portion of the bottom rail support assembly; a plurality of feet comprising: a first foot coupled to the first bottom support rail and pivotably coupled to the first corner post member; a second foot coupled to the second bottom support rail and pivotably coupled to the second corner post member; a rail locking mechanism pivotably coupled to the first top rail member and the second top rail member, wherein the rail locking mechanism is adjustable from a locked configuration to an unlocked configuration; a release mechanism having a first end coupled to the rail locking mechanism and a distal second end coupled to first bottom support rail wherein release mechanism is configured to move the rail locking mechanism from the locked configuration to the unlocked configuration when the first foot is pivoted in a first direction about the first corner post member.
 2. The playard of claim 1, wherein the first top rail member is pivotable about a first axis with respect to the first corner post member and the second top rail member is pivotable about a second axis with respect to the second corner post member.
 3. The playard of claim 2, wherein the first axis is parallel to the second axis.
 4. The playard of claim 1, wherein the release mechanism comprises a cable.
 5. The playard of claim 1, wherein the first top rail member comprises a first channel extending though the first top rail member along a longitudinal axis of the first top rail member and wherein the first corner post member comprises a second channel extending through the first corner post member along a second longitudinal axis of the first corner post; and wherein the release mechanism extends from the rail locking mechanism through the first channel of the first top rail member and the second channel of the first corner post to the first bottom support rail.
 6. The playard of claim 1, wherein the bottom rail support assembly further comprises a third bottom rail support coupled to the hub assembly and a fourth bottom rail support coupled to the hub assembly.
 7. The playard of claim 6, wherein the top rail support assembly further comprises a third top rail member and a fourth top rail member; wherein the plurality of corner posts further comprises a third corner post member and a fourth corner post member; wherein the plurality of feet further comprises: a third foot coupled to third bottom support rail and pivotably coupled to the third corner post member; and a fourth foot coupled to the fourth bottom support rail and pivotably coupled to the fourth corner post member; a second rail locking mechanism pivotably coupled to the third top rail member and the fourth top rail member, wherein the second rail locking mechanism is adjustable from the locked configuration to the unlocked configuration; a second release mechanism having a first end coupled to the second rail locking mechanism and a distal second end coupled to third bottom support rail, wherein the second release mechanism is configured to move the second rail locking mechanism from the locked configuration to the unlocked configuration when the third foot is pivoted in a second direction about the third corner post member.
 8. The playard of claim 7, wherein the hub assembly comprises: a central hub member; a first coupling rod pivotably coupled to the central hub member and extending from the central hub member in a first direction, wherein the first coupling rod is coupled to the first bottom support rail and the third bottom support rail; a second coupling rod pivotably coupled to the central hub member and extending from the central hub member in a second direction opposite the first direction, wherein the second coupling rod is coupled to the second bottom support rail and the fourth bottom support rail.
 9. The playard of claim 6, wherein each of the first bottom rail support, second bottom rail support, third bottom rail support, and fourth bottom rail support are pivotably coupled to the hub assembly.
 10. The playard of claim 1, wherein the first top rail member further comprises a first cam follower coupled to the first top rail member, wherein the second top rail member comprises a second cam follower, coupled to the second top rail member, and wherein the rail locking mechanism comprises a latch plate coupled to the release mechanism, the latch plate comprising: a first cam path configured to receive the first cam, wherein at least a portion of the first cam path has a first arcuate shape; a second cam path configured to receive the second cam follower, wherein at least a portion of the second cam path has a second arcuate shape.
 11. The playard of claim 10, wherein each of the first cam follower and the second cam follower is one of a rivet, pin, post, or cam follower.
 12. The playard of claim 10, wherein the rail locking mechanism further comprises a spring, wherein the spring biases the rail locking mechanism into the locked configuration.
 13. The playard of claim 1, wherein the playard remains upright when the playard is in the folded configuration.
 14. A playard configured to be foldable from a use configuration to a folded configuration, the playard comprising: a foldable playard frame comprising: a top rail support assembly comprising a first top rail member and a second top rail member, the top rail support assembly forming an upper portion of an enclosure of the playard; a bottom rail support assembly forming a lower portion of the enclosure; a hub assembly coupled to the bottom rail support assembly and adjustable along an axis; a plurality of corner post members, each of the plurality of corner post members operatively coupling a portion of the top rail support assembly to a portion of the bottom rail support assembly; a rail locking mechanism pivotably coupled to a first top rail member and the second top rail member, wherein the rail locking mechanism is adjustable from a locked configuration to an unlocked configuration; wherein in the use configuration, the adjustment of the hub assembly vertically upward along the axis causes a pivoting of the bottom rail support assembly with respect to the plurality of corner posts and wherein pivoting of the bottom rail support assembly with respect to the plurality of corner posts adjusts the rail locking mechanism from the locked configuration to the unlocked configuration and permits each of the first top rail member and the second top rail member to pivot with respect to the rail locking mechanism.
 15. The playard of claim 14, further comprising a release cable, having a first end coupled to the rail locking mechanism, a distal second end coupled to bottom rail support assembly, and extending through the first top rail member and a first corner post member of the plurality of the corner post members.
 16. The playard of claim 15, wherein the first corner post member comprises a first end disposed adjacent the first top rail member and a distal second end disposed adjacent the bottom rail support assembly, wherein the first corner post member further comprises a pulley coupled to the second end and configured to receive at least a portion of the release cable thereon.
 17. The playard of claim 14, wherein the bottom rail support assembly comprises a plurality of curved members, each of the plurality of curved members comprising at least a first curved portion and a second curved portion, wherein a first curved portion is separated from the second curved portion by a straight portion and wherein the first curved portion is curved in a direction opposite that of a direction of curvature for the second curved portion.
 18. The playard of claim 14, further comprising a plurality of feet, wherein each of the plurality of feet is fixedly coupled to the bottom rail support assembly and pivotably coupled to a respective one of the plurality of corner post members.
 19. The playard of claim 14, wherein the playard remains upright when the playard is in the folded configuration.
 20. A method of adjusting a foldable playard from a use configuration to a folded configuration comprising: providing a foldable playard frame in the use configuration, the frame comprising: a bottom rail support assembly comprising at least one bottom support rail; a hub assembly coupled to the bottom rail support assembly; a top rail support assembly comprising a first top rail member, a second top rail member, a third top rail member, and a fourth top rail member; a plurality of corner post members comprising a first corner post member and a second corner post member, each of the plurality of corner post members operatively coupling a portion of the top rail support assembly to a portion of the bottom rail support assembly; a first rail locking mechanism pivotably coupled to the first top rail member and the second top rail member, wherein the first rail locking mechanism is adjustable from a locked configuration to an unlocked configuration; a second rail locking mechanism pivotably coupled to the third top rail member and the fourth top rail member, wherein the second rail locking mechanism is adjustable from the locked configuration to the unlocked configuration a first release mechanism having a first end coupled to the first rail locking mechanism and a distal second end coupled to bottom rail support assembly; and a second release mechanism having a first end coupled to the second rail locking mechanism and a distal second end coupled to the bottom rail support assembly; adjusting the hub assembly in a first direction, wherein movement of the hub assembly in the first direction causes a corresponding movement of the bottom rail support assembly, wherein the bottom rail support assembly pivots with respect to each of the plurality of corner post members; wherein pivoting of the bottom rail support assembly with respect to the first corner post member generates a first tension in the first release mechanism; wherein pivoting of the bottom rail support assembly with respect to the second corner post member generates a second tension in the second release mechanism; wherein the first tension adjusts the first rail locking mechanism from the locked configuration to the unlocked configuration; wherein the second tension adjusts the second rail locking mechanism from the locked configuration to the unlocked configuration; wherein each of the first top rail member and the second top rail member pivot with respect to the first rail locking mechanism in the unlocked configuration; and wherein each of the third top rail member and the fourth top rail member pivot with respect to the second rail locking mechanism in the unlocked configuration. wherein release mechanism is configured to move the rail locking mechanism from the locked configuration to the unlocked configuration when the first foot is pivoted in a first direction about the first corner post member. 